A research on groundwater fluctuation due to rainfall in chidambaram taluk of Cuddalore District, Tamilnadu

Abstract

Water plays an important role in development of economy of a country and agricultural activities in all parts of the world. Ground water depends upon hydrology, land use, soil, geology, geomorphology and aquifer characteristics of the study area. An important component of water balance equation is ground water recharge. This study focuses mainly on the causes of groundwater fluctuation and its trend as well as to determine the amount of recharge in the study area by rainfall infiltration. The fluctuations of ground water level, variation of monthly rainfall, were analyzed in the study area. The vertical change in storage is not same throughout the year due to variation in rainfall and infiltration rate of soil. The maximum and minimum depths of water table were found respectively. Monthly variation of rainfall follows the usual pattern of monsoon with heavy rain from November to December. The maximum infiltration as well as runoff also occurred from November and December due to maximum rainfall and the infiltration, runoff is negligible during the rest of the year due to very meager rainfall.